1243124344412 has 24 divisors (see below), whose sum is σ = 2308432951440. Its totient is φ = 583730696960.

The previous prime is 1243124344403. The next prime is 1243124344459. The reversal of 1243124344412 is 2144434213421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19796462 + ... + 19859157.

It is an arithmetic number, because the mean of its divisors is an integer number (96184706310).

Almost surely, 2^{1243124344412} is an apocalyptic number.

It is an amenable number.

1243124344412 is a deficient number, since it is larger than the sum of its proper divisors (1065308607028).

1243124344412 is a wasteful number, since it uses less digits than its factorization.

1243124344412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39656101 (or 39656099 counting only the distinct ones).

The product of its digits is 73728, while the sum is 35.

Adding to 1243124344412 its reverse (2144434213421), we get a palindrome (3387558557833).

The spelling of 1243124344412 in words is "one trillion, two hundred forty-three billion, one hundred twenty-four million, three hundred forty-four thousand, four hundred twelve".